Multifunctional flexible and stretchable polyurethane/carbon nanotube strain sensor for human breath monitoring

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F19%3A63523487" target="_blank" >RIV/70883521:28110/19:63523487 - isvavai.cz</a>
Alternative codes found
RIV/70883521:28610/19:63523487
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/pat.4621" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/pat.4621</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/pat.4621" target="_blank" >10.1002/pat.4621</a>

Result language
angličtina
Original language name
Multifunctional flexible and stretchable polyurethane/carbon nanotube strain sensor for human breath monitoring
Original language description
Flexible and stretchable polyurethane/carbon nanotube composite with strain detection ability was used for human breath monitoring. The composite material consisted of a network of multiwalled carbon nanotubes and thermoplastic high elastic polyurethane. It was found that elongation of the composite led to a macroscopic increase in electrical resistance, which can be used as a principle for applied strain detection. This detection was reversible, durable, and sensitive with gauge factor reaching very promising value, as, for example, ~46 at applied deformation of 8.7%. Further, the composite could be elongated to very large extend of deformation without discontinuity in measured resistance change reaching gauge factor ~ 450 at composite mechanical break at ~300% of strain. Sensor durability was also confirmed by sine wave deformation cycling when any decrease in the sensor properties for more than 10 3 cycles was observed. Simultaneously, the prepared composite possessed other utility properties also and was considered as multifunctional when it was tested as an organic solvent vapor sensor, an element for Joule heating and finally as a microstrip antenna.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10404 - Polymer science

Project
<a href="/en/project/LO1504" target="_blank" >LO1504: Centre of Polymer Systems Plus</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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